A) \[l=2.5\,\,m,\,\,b=4.5\,\,m\]
B) \[l=3.5\,\,m,\,\,b=3.5\,\,m\]
C) \[l=4.5\,\,m,\,\,b=2.5\,\,m\]
D) \[l=2.5\,\,m,\,\,b=5.5\,\,m\]
Correct Answer: C
Solution :
\[b=l-2\] ?(i) \[2(l+b)=14\] \[\Rightarrow \]\[l+b=7\](or )\[b=7-l\] ?(ii) From (i) & (ii) \[l-2=7-l(Sinceb=l=-2)\] \[\Rightarrow \]\[l=4.5\,m\]and \[b=2.5\,m\]You need to login to perform this action.
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